1123224131 has 8 divisors (see below), whose sum is σ = 1141154784. Its totient is φ = 1105427200.

The previous prime is 1123224101. The next prime is 1123224139. The reversal of 1123224131 is 1314223211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123224131 is a prime.

It is a super-2 number, since 2×1123224131² = 2523264896921410322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123224139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16430 + ... + 50163.

It is an arithmetic number, because the mean of its divisors is an integer number (142644348).

Almost surely, 2^1123224131 is an apocalyptic number.

1123224131 is a deficient number, since it is larger than the sum of its proper divisors (17930653).

1123224131 is a wasteful number, since it uses less digits than its factorization.

1123224131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66861.

The product of its digits is 288, while the sum is 20.

The square root of 1123224131 is about 33514.5361149457. The cubic root of 1123224131 is about 1039.4943705210.

Adding to 1123224131 its reverse (1314223211), we get a palindrome (2437447342).

The spelling of 1123224131 in words is "one billion, one hundred twenty-three million, two hundred twenty-four thousand, one hundred thirty-one".